DE19827017A1 - Digital photography editing system - Google Patents

Description

The present invention relates to a digital photography processing system or Photo processing system and more precisely a digital photography processing system for Output a photograph while determining a ratio of an image data desired area to a total area of photography based on digital Image data.

A digital photography system using a digital fixed image of the or still image is constructed so that an image that is conventionally on a silver salt Film recorded by silver salt photography was converted into an electrical signal a CCD or the like is converted, resulting in a digital conversion is subjected and then output from a printer. So that allows digital photography system that the photographed picture immediately after taking it (Photography) is confirmed without requiring development in a dark room and facilitates additional printing of photography.

The digital photography system also allows the image to be edited and in shape of digital data is saved, thereby building a database for customers  and the like to ensure and change a background, change a To facilitate construction or clothing or the like.

Identification photography or an identification photo generally has longi tudinal and lateral dimensions that are determined depending on their applications or are defined. In particular, identification photography for a passport or an identity card a length of a person's head and an edge above the head fes well defined. A label photography for another application has the same A size of the head defined to a certain degree. So one is excessive Large or small dimensions of the head are not allowed on the photograph.

In the conventional silver salt photography process, it is necessary to size one Stop photography when taking or printing. If a negative Film used will enlarge to a required size during the Printing on a development paper.

Such silver salt photography processes require development in a dark Space, taking a long time between taking the photograph and finishing it development is required.

On the other hand, the methods of using an instant film allow that a photograph is completed in a short period of time. However, an enlargement is missing tion of photography, so that it is necessary to specify its size during the recording to deliver. For this purpose, procedures such. B. a change in the distance of the Ap parates, use of suitable lenses or the like. used to resize an image to stop the film.

The digital photography system enables an image to be created in the form of digital data Det and stored, so that both the enlargement and reduction of the Image can be easily executed according to an image processing method. If it for example, it is desired to achieve a 5 cm x 5 cm output using an output printer of 10 dots / mm in resolution, 50 dots are square Data required.

Assuming that the image data is 1600 × 1200 dots and one area of a person required for identification photography, in an area of 1000 points squared, the data can be used for a range of person can be obtained by feeding the area of 1000 points squared in the printer to every other point.  

The enlargement and reduction of an image by digital image processing requires two dates. One of the dates relates to a section of the original Bil the one to be used and the other relates to a section of one to be included the output area to be photographed.

The latter data can be determined mechanically by entering req other information. For example, if a printer of 8 cm × 6 cm in the output size and 10 dots / mm in resolution are used in the printer fed data 800 × 600 points in size represented by X-Y Coordinates, of which a left upper limit (0, 0) and a right lower limit (799, 599).

For example, if a photograph of 5 cm × 5 cm is required as the output is entered, one finds by mechanical calculation that a middle range of 500 × 500 or a range between (150, 50) and (749, 549) is to be used.

The earlier dates vary depending on the original image. Therefore display of the original image is performed on a CRT or the like to display the area to be cut. The most typical way is to expand moveable rectangle on an image plane using a mouse or the like in order to thereby entering the top-left and bottom-right coordinates of the rectangle.

Unfortunately, such a method is not necessarily suitable for a label tion photography, since the attitude towards keeping a size of a head of a person constant son and for positioning the person on a central axis for identification photography required are. The name of the cut rectangle that will be executed in the manner described above makes such adjustment extremely difficult.

The present invention has been made in view of the aforementioned drawbacks state of the art.

Accordingly, an object of the present invention is a digital photo graphics editing system that is suitable to perform the editing operation after opening taking (photography) and the output of a photograph of defined dimensions in one to facilitate a short period of time.

It is another object of the present invention to provide a digital photography Specify processing system that is capable of easily a cutting area of an image admit to output a length or distance between desired two Points in image data as a current dimension is required.  

According to the present invention, a digital photography processing system specified. The digital photography processing system has an image input device device for storing image data of an object therein and for outputting the image data, an operating device with the image data entered therein, which is constructed such that it edits position coordinates of two points on the input image data, one Display means for displaying the image data in the form of an image thereon, and one Memory in which previously set parameters or values of the image data during the Output are saved. The set parameters indicate a current or an act neuter dimension between the two points on the image data and current longitudina le and lateral dimensions of a photograph to be output. The digital photography Processing system also has a processing device for reading the from the image input device output image data and to perform an operation, so that position coordinates of the two points entered therein by operation in the Machining facility, a current dimension between the two points in the Memories are stored and represent a range of image data that allows the set parameters, saved in memory, cut out under warranty and an image output device configured to allow image data th output from the processing device in the form of a photograph be.

In a preferred embodiment of the present invention, the image Input device selected from a group consisting of a digital camera and a Storage unit in which the image is already stored and which is constructed in such a way that image data is output from a face of a person, so that a digital photo graphics editing system created a label photography. The surgical facility gives position coordinates of the two points on an upper part of a person's head and a cheek from her through the surgery. The content is saved with the set parameters, which is a length of the face in the photograph issued, a top of the photograph, and longitudinal and lateral dimensions of the photograph include. The processing device performs an operation of cutting or off intersect a portion of the image data that allows a distance between the head of the person and their cheeks a current dimension of a length of the Facial corresponds to those contained in the set parameters, which are contained in the memory saved, and enables an output of the photography of actual or  

current dimensions that meet the set parameters. The picture- Output device is formed by a printer that enables the image data be issued in the form of a photograph.

In a preferred embodiment of the present invention, the processing is processing device so constructed that a predetermined operation of converting the out intersected area according to the point spacing and the number of points that the Has image output device is executed.

Further advantages, features and possible uses of the present invention tion result from the following description of exemplary embodiments in Ver binding with the drawing.

Fig. 1 is a block diagram showing an embodiment of a digital photography processing system according to the present invention;

Fig. 2 is a sketch view showing a portion of an image to be cut out, and

Fig. 3 is a schematic view showing the dimensions of an identification photograph for a passport.

Below is a digital photography processing system according to the present the invention described with reference to the drawings mentioned.

First, referring to FIG. 1, an embodiment of a digital photography processing system according to the present invention will be explained. A digital photography processing system according to the illustrated embodiment generally comprises an image input device 1, e.g. B. a digital camera, a scanner or the like for outputting image data of an object, a processing device 2 , z. B. a personal computer (PC) or the like for performing an image cutting operation to cut out a predetermined area of an image based on image data input therein from the image input device 1, an operation device 3 , e.g. A keyboard, mouse or the like by which the image cutting operation is performed, a display device 4 , e.g. B. a CRT or the like and an image output device 5, which enables the output of a photograph or a photo from there.

The processing device 2 also has an I / F section 2 a, through which data from the image input device 1 is fed into the image output device 5 , a CPU 2 b for controlling and processing an image cutting operation according to an execution program, one Memory 2 c for storing each of the parameters when cutting the image data, and an image memory 2 d for storing image data which are processed in the CPU 2 b.

The image input device 1 outputs image data to the processing device 2 from which an area is equal to or larger than an intersection area.

The CPU 2 b of the processing device 2 executes an operation based on the image data input therein so that a length or a distance between two points A and B designated by the operation of the operating device has a predetermined value. This leads to a cut area or cut-out area of an image that has to be set automatically.

The image data designate the points A and B by moving a cursor or pointer of the operation device 3 or the like while this is displayed on the display device 4 .

The image data on the cut-out area, which is thus automatically set, are output in the form of a photograph or a light image by the image output device 5 .

The mode of operation for cutting out a predetermined area of an image by the digital photography processing system of the illustrated embodiment thus constructed will now be described in connection with the issuance of identification photograph or identification photo for a passport with reference to the example of FIGS. 2 and 3.

The operating device 3 is operated to denote a length of a face of a subject or a person whose image data is displayed on the display device 4 . More specifically, the cursor is clicked at a point A on a tip or top of a person's head and a point B on his cheek, which leads to the input of X and Y coordinates (Xh, Yh) and (Xt, Yt) leads to the image data. The X and Y coordinates on the image data have an origin (0, 0) which is defined at a position at the bottom left.

In the memory 2 d of the processing device, parameters of values having the longitudinal and lateral dimensions H and W for storing a passport photograph, a length L of the head, and an edge T, which is defined above the head, are previously stored.

This coordinate (Xh, Yh) of the upper head point A and the coordinate (Xt, Yt) of the jaw point B thus entered, as well as the parameters H, W, F and T for output, which were read out from the memory 2 d, are used to determine an average position of an X axis of a rectangle to be cut out by an operation according to the following equation:

 Xc = (Xh + Xt) / 2.

Similarly, an upper left coordinate of the rectangle is obtained by an operation according to the following equation:

X0 = Xc - W / 2. (Yh - Yt) / L
Y0 = Yh + T. (Yh - Yt) / L.

Likewise, a bottom-right coordinate of the rectangle is obtained by the following equations:

X1 = Xc + W / 2. (Yh - Yt) / L
Y1 = Y0 - H. (Yh - Yt) / L.

Such expressions are given in ( 1 ) overall or in general. Thus, the rectangle is cut out in a range thereof between (X0, Y0) and (X1, Y1). A distance between X0 and X1 corresponds to a transverse dimension W of a photograph or a light image that is output, and a distance between Y0 and Y1 corresponds to a longitudinal dimension H of the photograph.

Designated positions of the parameters described above are shown in FIG. 2.

For example, if one assumes that a printer used for the image output device 5 has a resolution (dot spacing) of 10 dots / mm, the coordinate (Xh, Yh) of the upper head point A, designated in the operating device 3, (400, 500 ), and the coordinate (Xt, Yt) of the baking point B (400, 180), the processing device reads 2 parameters for output from the memory 2 d. Assuming that the parameters read have a head length of 27 mm, the edge T above the head 8 mm, the longitudinal dimension H is 45 mm and the transverse dimension W is 35 mm, the central region of the X-axis of the cut rectangle is as follows calculated:

Xc = (Xh + Xt) / 2
= (400 + 400) / 2
= 400.

The top-left coordinate of the rectangle is as follows:

X0 = Xc - W / 2. (Yh - Yt) / L
= 400 - 3512. (450 - 180) / 27
= 225
Y0 = Yh + T. (Yh - Yt) / L
= 450 + 8. (450 - 180) / 27
= 530.

The bottom-right coordinate of the rectangle is also calculated as follows:

X1 = Xc + W / 2. (Yh - Yt) / L
= 400 + 35/2. (450 - 80) / 27
= 575
Y1 = Y0 - H. (Yh - Yt) / L
= 530 - 45. (450 - 180) / 27
= 80.

This results in a range between (225, 530) and (575, 80) that is cut out with 350 points between X0 and X1 with the transverse dimension W (35 mm) level photography and 450 points between Y0 and Y1 with the longitudinal dimension H (45 mm) of which coincide.

If it is generally assumed that the image is developed in the middle region and the region lies between (X2, Y2) and (X3, Y3), if the image data described above are dotted by a printer of P (dots / mm) and Xp and Yp are printed in the number of dots, then X2 to Y3 are expressed as follows:

X2 = Xp / 2 - X / 2.P
Y2 = Yp / 2 + H / 2.P
X3 = Xp / 2 + W / 2.P
Y3 = Yp / 2 - H / 2.P.

Such expressions are given in general terms in ( 2 ).

A coordinate conversion expression from the coordinates on the image plane to those on the printer is linearly denoted by (X0, Y0) → (X2, Y2) and (X1, Y1) → (X3, Y3). A coordinate (x, y) on the image plane is converted into a coordinate (X, Y) on the printer, as follows:

X = X2 + (x - X0) (X3 - X2) / (X1 - X0)
Y - Y2 + (y - Y0) (Y3 - Y2) / (Y1 - Y0).

Such two expressions are given in general terms in ( 3 ).

The above expressions ( 1 ) and ( 2 ) are replaced by the expression ( 3 ) for performing an operation so that the results of the conversion can be obtained directly.

The intersection area of the image is calculated by expression ( 1 ) based on the coordinates of the two points or the upper head point A and cheek point B obtained by operations in the operation device 1 , and data is output to the positions on the printer coordinates converted by expression ( 3 ), which results in the data being arranged in the area indicated by expression ( 2 ).

As can be seen from the foregoing description, the present is Er Finding constructed so that a cutting area of the image data, which allows a section between two points of the image data can be realized as the current predetermined dimension must be calculated by simply entering the two points, which leads to a Fo tography. Such a structure facilitates the designation of a cutting position strong, compared to conventional image or photo processing.

The present invention allows photographs or photographs to be different Dimensions from a single copy are output in reduced time. In particular in particular, the present invention facilitates the production of a different number of identification photographs or identification photos, while the restriction to minimize the layout for photography and the like. As well it makes editing easier after taking the photo because of turning off one Development in a dark room.

Although preferred embodiments of the invention are available to a certain degree Peculiarity regarding the drawings have been described, numerous Modifi cations and variations in the light of the above teaching. It is therefore too understand that the invention is capable of other changes within the scope of the appended claims can be widely implemented when it was described in detail here.

Claims (3)

1. A digital photography processing system comprising:
an image input device for storing image data of an object and outputting the image data;
an operation device in which the image data is input and which is constructed to process position coordinates of two points from the input image data;
display means for displaying the image data in the form of an image thereon;
a memory in which previously set values of the image data are stored during the output, the set values having a current dimension between two points from the image data and current longitudinal and lateral dimensions of a photograph to be output;
processing means for receiving the image data output from the image input means and performing an operation such that the position coordinates of the two points input therein by operation in the operation means are a current dimension between the two points stored in the memory, and one Represent area of image data which ensures that the set and adhered to values stored in the memory are cut out; and
an image output device configured to output the image data output from the processing device in the form of a photograph. 2. Digital photography processing system according to claim 1, wherein the image input device is selected from a digital camera and a storage unit in which the image is already stored and which is constructed such that image data of a person's face are output, wherein the digital photography processing system produces a signature photography;
wherein the operation device inputs position coordinates of the two points on an upper side of a head of the person and a cheek thereof through the operation; in which
stored values are stored in the memory, which have a length of the face in the output photograph, an upper edge of the photograph and longitudinal and lateral dimensions of the photograph;
wherein the processing means performs an operation to cut out an area of image data which enables a distance between the head of the person and his cheek to represent a current dimension of a length of the face contained in the set values stored in the memory , and a photograph of current dimensions that meet the set values is output; and
wherein the image output device is constituted by a printer which enables the image data to be output in the form of a photograph. 3. A digital photography editing system according to claim 1, wherein the editing device is constructed so that it performs a predetermined operation of converting the intersected area according to the point spacing and the number of points, which the image output device has.